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Finding the Fourth Proportional to 651,663.20, 977,203.20 and 252,171.20

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Solution

The fourth proportional to 651,663.20, 977,203.20 and 252,171.20 is: 378,143.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,663.20 : 977,203.20 = 252,171.20 : x
  2. Step 2: Convert to fraction form
    651,663.20/977,203.20 = 252,171.20/x
  3. Step 3: Cross multiply
    651,663.20x = 977,203.20 × 252,171.20
  4. Step 4: Simplify right side
    651,663.20x = 246,422,503,587.84
  5. Step 5: Solve for x
    x = 246,422,503,587.84/651,663.20
  6. Step 6: Final answer
    x = 378,143.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.